Finding the Fourth Proportional to 112,577.74, 168,887.07 and 53,412.85
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Solution
The fourth proportional to 112,577.74, 168,887.07 and 53,412.85 is: 80,128.99
Step by Step Solution
- Step 1: Write the proportion equation
112,577.74 : 168,887.07 = 53,412.85 : x - Step 2: Convert to fraction form
112,577.74/168,887.07 = 53,412.85/x - Step 3: Cross multiply
112,577.74x = 168,887.07 × 53,412.85 - Step 4: Simplify right side
112,577.74x = 9,020,739,947.96 - Step 5: Solve for x
x = 9,020,739,947.96/112,577.74 - Step 6: Final answer
x = 80,128.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.